I.B. 17555C
Effective November 1999
Page 16
Note: Digitrip 3000 Protective Relays are shipped
with a phase zone interlocking jumper (across
terminals TB 1-13 and 14) and a ground zone
interlocking jumper (across terminals TB 1-11 and
12). For phase or ground zone capability, the
respective jumpers must be removed.
Terminal Block Two (TB2): TB2 is located on the right
side of the rear panel and is numbered 1 through 15.
Terminals 1 and 2 are used for the internal INCOM com-
munications interface.
Terminal 3 can be used for an INCOM shield tie point. It is
not connected to ground or any electrical circuit in the
Digitrip 3000.
Terminals 4 and 5 are a N.O. contact from the Communi-
cations Close output relay that can be configured two dif-
ferent ways:
1.) When Dip Switch S5 is in the “On” position, this out-
put relay is programmed to close when the High Load
timer times out.
2.) When Dip Switch S5 is in the “Off” position the Com-
munications Close Relay can be energized via a spe-
cific communications message sent over the INCOM
port.
Terminals 6, 7 and 8 are Form “C” contacts on the trip
alarm relay and change state whenever any protective
trip is initiated by the relay. They do not change state
when the master computer initiates an opening of the cir-
cuit breaker via the communication interface. After a pro-
tective trip, the contacts remain in the changed state until
the “Reset” Pushbutton is depressed, whether the relay is
in the Manual Reset Mode or the Auto Reset Mode. For
additional details about Manual and Auto Reset Modes,
refer to specific paragraphs earlier in this section.
Terminals 9,10 and 11 are Form “C” contacts on the pro-
tection off alarm relay. The contacts change state when
nominal control power is applied to the relay and no inter-
nal errors are detected.
Terminals 12 and 13 are a “NO” configurable contact. DIP
Switch S3 is used to configure the trip contacts. With DIP
Switch S3 in the “OFF” position, this contact closes when
the relay detects a need for the circuit breaker to trip due
to either a phase or ground instantaneous fault or the dis-
criminator function. With DIP Switch S3 in the “ON” posi-
tion, this contact closes when the relay detects a need for
the circuit breaker to trip due to any type of ground fault.
Terminals 14 and 15 are also a “NO” configurable con-
tact. With DIP Switch S3 in the “OFF” position, this con-
tact closes when the relay detects a need for the circuit
breaker to trip due to an inverse time overcurrent or short
time function. The contact also operates when the com-
munication interface initiates an action to open the circuit
breaker. With DIP Switch S3 in the “ON” position, this
contact closes when the relay detects a need for the cir-
cuit breaker to trip due to any type of phase fault or com-
munications.
Rear Surface Terminals: The rear surface terminals,
identified as (A1, A2), (B1, B2), (C1, C2) and (G1, G2)
provide the current transformer input connection points
and are rated for 5 ampere inputs. (A1, A2), (B1, B2) and
(C1, C2) are phase A,B,C current inputs respectively,
while (G1, G2) is the ground current input.
2-2.3 EXTERNAL HARDWARE
The Digitrip 3000 Protective Relay requires that a cus-
tomer supplied source of input control power be wired
into the TB1 terminal block located on the rear panel.
Refer to the typical wiring diagram in Figure 3-1. A power
supply can be either AC or DC voltage within the accept-
able voltage ranges outlined in Paragraph 2-3 entitled
“UL Testing and Specification Summary.”
Содержание Cutler-Hammer Digitrip 3000
Страница 18: ...I B 17555C Effective November 1999 Page 12 Fig 2 1 Typical Communications Wiring Diagram...
Страница 27: ...I B 17555C Effective November 1999 Page 21 Fig 3 1 Digitrip 3000 Typical Wiring Diagram...
Страница 36: ...I B 17555C Effective November 1999 Page 30 Fig 3 11 Local Programming Sequence Flow Chart...
Страница 37: ...I B 17555C Effective November 1999 Page 31...
Страница 48: ...I B 17555C Effective November 1999 Page 42 Fig 7 1 Inverse Time Overcurrent Phase I4T Curves SC 5390 92B...
Страница 49: ...I B 17555C Effective November 1999 Page 43 Fig 7 2 Inverse Time Overcurrent Phase I2T Curves SC 5391 92B...
Страница 50: ...I B 17555C Effective November 1999 Page 44 Fig 7 3 Inverse Time Overcurrent Phase IT Curves SC 5392 92B...
Страница 51: ...I B 17555C Effective November 1999 Page 45 Fig 7 4 Inverse Time Overcurrent Phase Flat Curves SC 5393 92B...
Страница 52: ...I B 17555C Effective November 1999 Page 46 Fig 7 5 Short Delay Phase Curves SC 5394 92B...
Страница 53: ...I B 17555C Effective November 1999 Page 47 Fig 7 6 Inverse Time Overcurrent Short Delay Curves SC 5395 92B...
Страница 54: ...I B 17555C Effective November 1999 Page 48 Fig 7 7 Instantaneous Curves SC 5396 92B...
Страница 55: ...I B 17555C Effective November 1999 Page 49 Fig 7 8 Inverse Time Overcurrent Ground I4T Curves SC 5399 92B...
Страница 56: ...I B 17555C Effective November 1999 Page 50 Fig 7 9 Inverse Time Overcurrent Ground I2T Curves SC 5400 92B...
Страница 57: ...I B 17555C Effective November 1999 Page 51 Fig 7 10 Inverse Time Overcurrent Ground IT Curves SC 5401 92B...
Страница 58: ...I B 17555C Effective November 1999 Page 52 Fig 7 11 Inverse Time Overcurrent Ground Flat Curves SC 5402 92B...
Страница 59: ...I B 17555C Effective November 1999 Page 53 Fig 7 12 Short Delay Ground Curves SC 5403 92B...
Страница 60: ...I B 17555C Effective November 1999 Page 54 Fig 7 13 ANSI Moderately Inverse Curves SC 6685 96...
Страница 61: ...I B 17555C Effective November 1999 Page 55 Fig 7 14 ANSI Very Inverse Curves SC 6686 96...
Страница 62: ...I B 17555C Effective November 1999 Page 56 Fig 7 15 ANSI Extremely Inverse Curves SC 6687 96...
Страница 63: ...I B 17555C Effective November 1999 Page 57 Fig 7 16 IEC A Moderately Inverse Curves SC 6688 96...
Страница 64: ...I B 17555C Effective November 1999 Page 58 Fig 7 17 IEC B Very Inverse Curves SC 6689 96...
Страница 65: ...I B 17555C Effective November 1999 Page 59 Fig 7 18 IEC C Extremely Inverse Curves SC 6690 96...
Страница 66: ...I B 17555C Effective November 1999 Page 60 Fig 7 19 IEC D Flat Curves SC 6691 96...
Страница 68: ...I B 17555C Effective November 1999 Page 62...
Страница 73: ...I B 17555C Effective November 1999 Page A5 Fig A 7 DT3001 Typical Wiring Diagram...
Страница 76: ...I B 17555C Effective November 1999 Page A8...
Страница 81: ...I B 17555C Effective November 1999 Page B5 Fig B 2 Digitrip 3010 3020 Dimensions Inches...
Страница 83: ...I B 17555C Effective November 1999 Page B7 Fig B 3 Digitrip 3010 3020 Typical Wiring Diagram...
Страница 89: ...I B 17555C Effective November 1999 Page B13...
Страница 90: ...I B 17555C Effective November 1999 Page B14...
Страница 91: ...I B 17555C Effective November 1999 Page B15...